Rules FAQ
- Each reaction may only be initiated once each time its specified triggering condition occurs, so you cannot discard multiple cards from your hand to raise the claim value by more than 1 with Ser Barristan Selmy.
Commander. Knight.
Renown.
Reaction: After you win a challenge in which Ser Barristan Selmy is participating, discard 1 card from your hand to, either: stand each defending Knight character, or raise the claim value on your revealed plot card by 1 until the end of the challenge. (Limit twice per phase.)
Link: Decklists
Rules FAQ